Don't pigeons make that annoying sound??? This one doesn't make that sound and we are outside a lot lately... I hope you can figure it out, now it's driving me crazy. The babies look the same as the ones BMD posted, but the moms are different. Hmmm.

The beaks are longer than the pigeons though. Perhaps the one we are seeing is the male Morning Dove. I know in the bird world that Males have more color.. so maybe the red n yellow by the beak lets the gals know he's a hotty? Watch to see if another one comes that doesn't have the coloring then might have our answer.

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"For every animal that dies in a shelter, there is someone somewhere responsible for its death".

I have a Mourning-Doves nest in my Blue Spruce,yours is definetly a pigeon,I have lots of those too coming to my feeders and they come in all colours,just leave them be and they will soon be strong enough to fly off..
The male and fmale doves look the same,except the male is a bit bigger.The picture you showed is that of a pigeon.
Personally I think the cooing sound the pigeons make,during mating-time is very soothing.
I tried to post my picture of my mourning-doves,but for some reason it's not working.

Speaking of not knowing what kind of birds are what, there are 2 ducks at the lake that I have never seen before. One is black (with shinny green head) and a white chest, the other looks like it is half seagull half duck. I will take a picture of the two today, and see what you guys think.

The picture of Momma Bird certainly looks like a pigeon .... keep in mind that a pigeon is actually part of the dove family (rock dove) and comes in many different colours ... that may be why people are confusing if with a mourning dove. Momma Bird is definitely not a mourning dove. May be a rock dove (pigeon) or another type of dove that is common in your area.
Great pictures ... would love to see more as the babies grow

No,it's definetly not a Pelican
I checked my North American bird-book,I see no duck that looks anything like this one,it actually looks like a mix of a Duck and an Albatross
The bill is definetly that of some sort of Duck and there are many different kinds.